if front struts arn't leaking i would not replace them you may have to replace upper bearing plates they are bad at that. and if not jouncing and front tires arn't cupping you can tell if there cupping by running your hands around tires. and the back ones are probably shocks you can tell by looking to see if the shocks arn't running threw the coil springs there just shocks.
good luck....
scrapper...
good luck...
scrapper...